1973 47 Commander Exhaust connections from muffler replacements

Hello.  Just had a conversation with a fellow Commander owner and he strongly recommended  that I replace the couplers and clamps between the exhaust pipe and the mufflers.  

Well, how do I get access to those places -  I'm thinking that they are outboard of the fuel tanks.  Can anyone give me some advice as to how to proceed?

Thanks in advance for any assistance

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OMG    Bosak participates, he is not aging out any time soon!

Dennis,  Mike Watson should become your new best friend!

9MG! TSLJO, Welcome home. 

I'm unfamiliar with the 47'.  But I just replaced all my hoses and exhaust, and about 1/3 of the clamps fell apart when I turned the clamp screws.  And this is a boat that sat indoors for decades, in near perfect shape, with 500-hours.  Old hose clamps are not to be trusted.

Dennis,

I just did my port side this winter.  No small task due to access.  All of the exhaust was put in before the tanks and woodwork for the cabin.  Ours is a 76 with Cummins. We have the double bed on the port side and the single on the starboard.  If your boat is not in the water yet you can reach in about 2' through the exhaust with a camera and take a picture of the space between the end of the muffler and the 6" fiberglass tube.  That space of exposed tube is only about 3/4" and where the  water lays it rots.  We had small leak in the port side.  While the starboard side should have been replaced, it wasn't leaking there was no access without tearing apart the teak cabinetry next to the bed. I filled the space of the rear connection with 5200 which should do the trick for a while.  Replaced with 6" silicone hose.  I've got some pictures I could post and layout what I did to get them on.  In the meantime you can give me a call to discuss.

Mike

269.929.6738    

Good morning, to access the mufflers and pipes you need to remove the side panels above the aft bunks.

on my 47, remove the trims pieces first and then that exposes the screws that remove the side panels to access the  mufflers pipes etc .

once you have that removed you will want to remove the plywood panel laying on the tanks...it helps as well, just slide it out and allow better view where your working.

Scott Blewett

Mike made me want to go to church on Sunday and pray to not have to do the task as he described it!

It might be a terrible job, but if it's never been done I highly recommend it, 50 year old rubber, not good. A couple years ago this sunk a big Roamer in Algonac, when I did my 31 the hoses were crumbling. 

Thanks  -- I figured there was going to be some disassembly.  I'm launching on 5//26, so I will replace both sides -- 



Scott R Blewett said:

Good morning, to access the mufflers and pipes you need to remove the side panels above the aft bunks.

on my 47, remove the trims pieces first and then that exposes the screws that remove the side panels to access the  mufflers pipes etc .

once you have that removed you will want to remove the plywood panel laying on the tanks...it helps as well, just slide it out and allow better view where your working.

Scott Blewett

I'll give you a call after I make a trip to the boat on Friday --  Thanks

Mike Watson said:

Dennis,

I just did my port side this winter.  No small task due to access.  All of the exhaust was put in before the tanks and woodwork for the cabin.  Ours is a 76 with Cummins. We have the double bed on the port side and the single on the starboard.  If your boat is not in the water yet you can reach in about 2' through the exhaust with a camera and take a picture of the space between the end of the muffler and the 6" fiberglass tube.  That space of exposed tube is only about 3/4" and where the  water lays it rots.  We had small leak in the port side.  While the starboard side should have been replaced, it wasn't leaking there was no access without tearing apart the teak cabinetry next to the bed. I filled the space of the rear connection with 5200 which should do the trick for a while.  Replaced with 6" silicone hose.  I've got some pictures I could post and layout what I did to get them on.  In the meantime you can give me a call to discuss.

Mike

269.929.6738    

Easy for you to say  -- If the job really sucks, I can always put in a work order to the yard and have them do it.!!!

Byron Smith said:

OMG    Bosak participates, he is not aging out any time soon!

Dennis,  welcome back, I think the harbor and their liability coverage would be my route. 

Tim

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